I tried, but failed. I simply don't have the money, and don't have the time. I can't visit the disney park every week, and I don't want to and can't order them online. I wanted to try, and I have like a collection of 30 or so, but that's about it lol.
I have.. um.. enough that if I sold them I could probably pay for a year of college. And we'll just leave it at that. Others here on MiceChat pin trade too and there's a club about in MiceChat Gold (membership for those 18+.)